Wairarapa SPCA says it is inundated with cats who need a loving new home.
The centre has extended its discount on adult cats for a further two weeks in an attempt to encourage prospective owners to adopt an older pet.
There are more than 13 cats and 12 kittens waiting for new homes, with more still in quarantine.
An SPCA volunteer said some of the influx was due to people having the time to notice stray cats in their area.
"People are home all day for the holidays and they've realised the cat that they've seen walking around has moved in and has had kittens in the garage - we've had a lot of that."